Benzoxazole Fluorescent Brightening Agent OB-1
Benzoxazole OB-1 is a synthetic organic fluorescent brightening agent used to enhance the whiteness and brightness of polyester fibers and plastics. It falls under HTS 3204.20.40.00 as a benzoxazol-type product designed for optical brightening in textile and polymer applications. This chemical absorbs UV light and emits blue fluorescence, counteracting yellowing.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If disperse dye rather than brightener
Products functioning primarily as coloring dyes fall under acid/dispe rse dye headings, not fluorescent agents.
If supplied as formulated preparation with additives
Mixtures exceeding simple coloring matter scope move to chemical preparations in Chapter 38.
If for retail packaging under 0.5 kg units
Dyes or brighteners put up in retail forms shift from Chapter 32 industrial chemicals to heading 3212.
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Import Tips & Compliance
• Verify chemical purity and structure via certificate of analysis to confirm benzoxazol classification under 3204.20.40.00
• Include Safety Data Sheets (SDS) and end-use declarations to prevent reclassification as a general dye
Related Products under HTS 3204.20.40.00
Tinopal OB Fluorescent Whitening Agent
Tinopal OB is a benzoxazole-based optical brightener for whitening synthetic fibers like polyester and polyamide in detergents and textiles. Classified under HTS 3204.20.40.00 for its benzoxazol structure as a fluorescent brightening agent per chapter note 3. It improves fabric appearance by emitting blue light upon UV excitation.
OB Fluorescent Brightener for Plastics
OB-type benzoxazol fluorescent brightener is added to polystyrene, PVC, and ABS plastics to achieve high whiteness and brightness. HTS 3204.20.40.00 covers this synthetic organic product used as a luminophore in polymer compounding. It prevents yellowness in transparent and opaque plastic products.
Benzoxazole CBS-X Optical Brightener
CBS-X is a benzoxazole derivative fluorescent whitening agent primarily for cotton and cellulosic textiles in paper and detergent industries. It qualifies under HTS 3204.20.40.00 as a synthetic organic fluorescent brightening agent. The product converts UV to visible blue light for enhanced brightness.
Fluorescent Brightener 184 Benzoxazol
Fluorescent Brightener 184 (FB184) is a benzoxazol compound for whitening polyolefins, engineering plastics, and synthetic leather. Under HTS 3204.20.40.00 for synthetic organic luminophores/brightening agents. It provides superior light fastness and heat stability in extrusion processes.